The Assassin's Blossom uses Assassin's Promise and the Black skill line to deal lots of damage, finishing with Death Blossom, creating deadly AoE damage.

Attributes and Skills

Assassin / Warrior	Attribute Rank
Dagger Mastery	10 + 2 + 1
Critical Strikes	11 + 2
Deadly Arts	10 + 1

Assassin's Promise

Dark Prison

Burst of Aggression

Black Lotus Strike

Twisting Fangs

Black Spider Strike

Death Blossom

Resurrection Signet

Equipment

• 70 AL armor with Nightstalker's Insignia, as you don't need more than 25 energy for this build.
• Zealous Daggers of Fortitude. These stats: 7-17 req(lowest you can afford), 15^50, zealous 1/-1, health+30/29/28. I use Zealous Dragon Scythes of Fortitude.
• Runes: Superior Dagger Mastery, Minor Critical Strikes, Minor Deadly Arts, Minor/Major/Superior Vigor, Attunement/Vitae.

Usage

• Find a target.
• Use Assassin's Promise on target. Cover hex with Dark Prison.
• When you start attacking, immediately use Burst of Aggression.
• Follow with Black Lotus Strike.
• Follow with Twisting Fangs. This will inflict Deep Wound AND Bleeding on target.
• Follow with Black Spider Strike. This will inflict Poison.
• Finish with Death Blossom for massive damage.
• Target's death will trigger Assassin's Promise, bringing you back to near-full energy, with all skills recharged. Note: this does not include Resurrection Signet.
• As long as target dies during the time that Assassin's Promise is on him/her/it, this build will run smoothly. If no death occurs within 13 seconds (which really shouldn't happen in PvE, unless you are fighting some kind of really good boss), you will be useless for about 30 seconds.

Variants

• Put in Dash or Death's Retreat in place of Signet of Toxic Shock when teleportation out of battle is necessary.

Counters

• Non-fleshy creatures will give you an EXTREMELY hard time.
• Basic anti-melee skills, such as Empathy, etc. But, hey, that's part of being an Assassin.